Woodworking machine



I 1,569,526 R. G. PARK, JR

WOODWORKING MACHINE Jan. 12 1926.

Filed Feb. 28, 192 2 Sheets-Sheet 1 Jan. 12 1926. 1,569,526

. R. G. PARK, JR

WOODWORKING MACHINE Filed Feb. 28 1925 2 Sheets-Sheet 2 Patented Jan. 12, 1926.

UNITED STATES PATENT orrics.

RICHARD G. PARK, 53., OF WASHINGTON, DISTRICTOF COLUMBIA, ASSIGNOR TO HUTCHINSON MANUFACTURING CO., 01? NORRISTOVIN, PENNSYLVANIA, A COR- PORATION on PENNSYLVANIA.

VJOODWORKING- MACHINE.

Application filed February 28, 1925.

To all whom it may concern:

Be it known that I, RICHARD G. PARK, J12, a citizen of the United States, residing at lVashington, in the District of Columbia, have invented certain new and useful Improvements in lVoodworlring Machines; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying -drawings, which form part of the specification.

This invention relates to improvements in woodworking machines adapted for sawing.

The object, novelty and advantage of my invention wi l appear to anyone skilled in the art of woodworking.

Referring to the drawings Fig. 1 shows a side elevation of my machine partly in cross-section with a portion of the supporting frame broken away to show the elevating means.

Fig. 2 is a back view of the carriage taken on the line 22 of Fig. 1.

Fig. 3 is a plan view of the supporting arm and center or intermediate rod positioned therein.

Fig. 4 is a detail view of a section of the post and elevating means.

Fig. 5 is a view of a modification of means adapted to elevate my post.

Fig. 6 is a modification which may be used in place of the depending collar bearing shown in Fig. 2.

Referring more particularly to the drawings, 1 denotes the frame of the machine consisting of legs 2 with connecting members 3, cross bars 4 and 5 supporting the table top 6. An elevating post 7 is mounted in the frame and confined to vertical move ment by a rack 8 which also serves to operate the post when pinion gear 9 mounted on rod 10 and supported in bearings 11, 12, and 13, is revolved by hand wheel 14. It will be seen that post 7 is slidably journalled in the upper and lower portions of the frame. A supporting collar is rigidly attached to the post and supports rotatable collar 16 provided with an outwardly extending ring 17 adapted to register with outwardly extending ring 18 which forms part of collar 19 which is rigidly attached to the post 7. The bolt 20 operates in a slot formed in ring 17 and is for the purpose of locking Serial No. 12,314.

rotatable collar 16 in any desired fixed position in relation to post 7. 011 top of the post is hown an electric switch box 21.

Rotatable collar 16 is provided with bearings 22 adapted to receive sliding side rods 23 and 24 which may also be supported by exposed roller bearings 25 and 26 which are mounted on a supporting frame or arm 27. This arm also contains a center or intermediate rod 28. .The arm is adapted for rigid connection by means of machine screws to rotatable collar 16. Upon the sliding rods 23 and 24'is mounted a meter base 30 having a motor 31 slidably mounted thereon and held in slidable relation thereto by retaining straps 32.v Means denoted by 83, 34, and 35 are provided for slidably regulating said motor in relation to its base.

This adjustment is provided for tightening the belt 36 which engages motor pulley 37 and the tool shaft pulley 38 which is mounted on tool shaft 89. This tool shaft is mounted in cross-head 40 which is mounted upon the ends of slide rods 23 and 24. A handle 41 is positioned upon the said crosshead directly in front of and in the line of travel of said sliding rods 23 and 24. On the tool shaft 39 is shown a circular saw 42 which is protected by a guard 43. The motor base 30 has a depending lug 44 provided with a bearing 45 adapted to ride upon rod 28.

In the modification Fig. 5 is shown how two posts 7 and 46 may be assembled to form a shoulder 47 for supporting rotatable collar 16. Beveled gears 48 and 49 engage to operate the worm screw 50 which operates in a rack 51 to elevate the post 7. It is clear that there are many new ways of elevating a post and I do not limit myself to any given elevating means.

In the modification (Fig. 6 is shown a depending lug 52 adapted for bolting to motor base 30. This lug carries a roller 52; adapted to engage the under side of rod This lug and roller may be used in place of lug 44 and bearing 45.

In the drawings filed herewith, 1' have illustrated one specific embodiment of my invention but it is to be distinctly understood that I do not consider my invention limited to the details of construction therein shown and described, but refer for its scope to the claims appended hereto.

Having pointed out the novel construction, combination and arrangement of my parts What I Wish to claim and secure by Letters Patent is 1. In a Woodworking machine, the combination of a main frame; a second frame supported thereon; a fixed rod positioned centrally in said second frame; a carriage supported by said second frame; a depending bearing attached to said carriage and slidable upon said rod; a tool shaft mounted on said carriage; and a motor mounted on said carriage and adapted to drlve said shaft.

2. In a woodworking machine, the combination of a main frame; a standard mounted therein; means for vertical adjust ment of said standard; a rotatable collar; means for mounting said collar upon said standard; a supporting arm provided with a center rod attached to said collar; bearings adjacent said collar; a slidable carriage comprising rods slidably supported by said collar bearings; a depending bearing attached to said carriage and slidable upon said center rod; a tool shaft mounted on said carriage; and a motor mounted on said carriage and adapted to drive said shaft.

3. In a Woodworking machine, the combination of a main frame; a standard mounted therem; means for vertlcal ad ustment of said standard; a rotatable collar;

means for mounting said collar upon said standard; a supporting arm provided with a central rod attached to said collar; bearings adjacent said collar and exposed rollers upon said arm; a slidable carriage comprising rods slidably supported by said collar bearings and exposed rollers; a depending bearing attached to said carriage and slidable upon said central rod; a tool shaft mounted on said carriage; and a motor mounted on said carriage and adapted to drive saidshaft.

t. In a Woodworking machine the combination of a main frame; a standard inounted therein; a second frame supported by and adapted to rotate about said standard, provided with bearings fore and aft; a fixed rod contained in said second frame and positioned beneath the plane of said bearin s' a carria e com )risin two aarallel rods slidably supported by said bearings; a depending bearing attached to said carriage and slid able upon said fixed rod, adapted to hold said carriage in fixed relation thereto; a cross-head abutting said parallel rods; an operating handle positioned upon said crosshead and in the same plane as said parallel rods; a tool shaft mounted in said crosshead; and a motor mounted on said carriage and adapted to drive said shaft.

In testimony-thatI claim the foregoing as my own I afiix my signature.

RICHARD G. PARK, JR. 

